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    Subject[PATCH 5.9 197/255] block: add a return value to set_capacity_revalidate_and_notify
    Date
    From: Christoph Hellwig <hch@lst.de>

    commit 7e890c37c25c7cbca37ff0ab292873d8146e713b upstream.

    Return if the function ended up sending an uevent or not.

    Cc: stable@vger.kernel.org # v5.9
    Signed-off-by: Christoph Hellwig <hch@lst.de>
    Reviewed-by: Petr Vorel <pvorel@suse.cz>
    Signed-off-by: Jens Axboe <axboe@kernel.dk>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

    ---
    block/genhd.c | 5 ++++-
    include/linux/genhd.h | 2 +-
    2 files changed, 5 insertions(+), 2 deletions(-)

    --- a/block/genhd.c
    +++ b/block/genhd.c
    @@ -49,7 +49,7 @@ static void disk_release_events(struct g
    * Set disk capacity and notify if the size is not currently
    * zero and will not be set to zero
    */
    -void set_capacity_revalidate_and_notify(struct gendisk *disk, sector_t size,
    +bool set_capacity_revalidate_and_notify(struct gendisk *disk, sector_t size,
    bool revalidate)
    {
    sector_t capacity = get_capacity(disk);
    @@ -63,7 +63,10 @@ void set_capacity_revalidate_and_notify(
    char *envp[] = { "RESIZE=1", NULL };

    kobject_uevent_env(&disk_to_dev(disk)->kobj, KOBJ_CHANGE, envp);
    + return true;
    }
    +
    + return false;
    }

    EXPORT_SYMBOL_GPL(set_capacity_revalidate_and_notify);
    --- a/include/linux/genhd.h
    +++ b/include/linux/genhd.h
    @@ -315,7 +315,7 @@ static inline int get_disk_ro(struct gen
    extern void disk_block_events(struct gendisk *disk);
    extern void disk_unblock_events(struct gendisk *disk);
    extern void disk_flush_events(struct gendisk *disk, unsigned int mask);
    -extern void set_capacity_revalidate_and_notify(struct gendisk *disk,
    +extern bool set_capacity_revalidate_and_notify(struct gendisk *disk,
    sector_t size, bool revalidate);
    extern unsigned int disk_clear_events(struct gendisk *disk, unsigned int mask);


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